Charging case for an electronic device



FIG. 1 is a bottom left front perspective view of a charging case for an electronic device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures represent the boundaries of the claim and form no part of the claimed design. 

CLAIM The ornamental design for a charging case for an electronic device, as shown and described. 